Cooker.



J. B. DODSON.

COOKER. APPLIGATION FILED JULY 23, 190B. 930,461 Patented Aug. 10,- 1909.

. m kw RY NQN W MUM UNITED STATES PATENT. orrrcn.

JOHN B. DODSON, OF SOUTH PASADENA, CALIFORNIA, ASSIGNOR TO JOHN W. DODSON,

' OF ST. LOUIS, MISSOURI.

COOKER.

Specification of Letters Patent.

Patented Aug. 10, 1909.

To all whom it may coacern:

Be it known that I, JOHN BENTLEY DonsoN, a citizen of the'United States, and a and to attain other advantages hereinafter more fully appearing. r 1

The invention consists in the parts and in the arrangements and combinatlons of parts hereinafter described and claimed.

In the accompanying drawings, forming part of this specification and wherein like symbols refer to like parts Wherever. they occur, Figure 1 is a view of a continuous cooker embodying my invention, the same being shown partly in side elevation and partly in longitudinal section, andthe intermediate ortion being broken away to foreshorten t e view; Fig. 2 is a plan view of a portion of the cooker with a portion of the top cover removed; and, Fig. 3 is a crosssection on the line 3-3 of Fi 1.

The cooker comprises an elongated cooking chamber 1 which is preferably divided into a series of compartments 2 by providing partitions 3 preferably at regular intervals throughout said chamber. The partitions are provided with o enings or passageways 4 alternatelynear t e to and bottom respectively, so that the pu p or other material being cooked is caused to movein a sinuous or zigzag direction in passing through the cooker. At the intake end ofthe cookin chamber a sup 1y pi e 5 enters, preferabdy about the middle 0' the first compartment. This supply pipe may communicate with any source of supply, but usually a large tank or vat. A 1pe 6 leads from the upper portion of the ast compartment or discharge end of the cooking chamber and a second pipe 7 is also preferably provided near the bottom of the chamber. This second ipe is provided principally as a drain and it has a suitable cut-ofi or valve 8.

Running lengthwise thereof beneath the cooking chamber isa main steam pipe 9 one end of which is closed by a cap or plug 10. It is also provided with a suitable cut-off valve 11. This steam pipe 9 is provided with oppositely extending branches 12 and 13, res ectively, there being a pair of branch pipes or each compartment 2. The branch pipes enter the compartments as jets 14 at diagonally opposite corners, as more clearly shown in Fig. 2.

In the operation of the cooker thepulp is siphoned or pumped in any suitable manner from the supply vat through the pipe 5 into the first compartment 2. As soon as said compartment becomes filled the pulp overflows into the next compartment and so on through the other compartments until the entire cooking chamber becomes filled.

The pulp is caused to move sinuously through the cooking chamber by the location of. the alternately high and low passageways 4 in the artitions 3. As the pulp moves through the chamber it is acted upon by the steam from the jet 14. The steam being under considerable pressure will cause the pulp to swirl so as to agitate the same sufficiently to insure the thorough cooking thereof.

Preferably, the cooking chamber is constructed of heavy lumber, the sides and top and bottom being fastened to the artitions 3 by through-bolts 15. The en s of the bolts 15 extend through cleats or reinforcing pieces 16 and are provided with securing nuts 17. By this arrangement, the cooking chamber may be made strong enough to resist the steam pressure. It also permits of readily dismantling the cooker when necessary.

If desired, suitable drain pipes 18 may be provided in or near the bottom of the several compartments. In this case, it is preferable to provide a slide or drop valve 19 which may be operated by a rod or handle 20 extending to the outside of the case.

The cooker may be otherwise. modified thereof, the jets on one side being staggered with respect to those on the opposite side,..

and said cooker having a pulp inlet opening at one end and pulp outlet opening at the op-' other endmost compartment, whereby a con-- tinuous movement of pulp is maintained through said cooker.

3. A pulp cooker comprising an elongated horizontal cooking chamber arranged to corn tinuously receive raw. pulp at one end and to discharge the cooked pulp at its opposite end, said chamber being provided with a plurality of transverse partitions having openings arranged to constitute a tortuous passage through said cooker, and steam jets arranged between each two partitions in such position that the steam delivered thereby will effect a whirlingmovement of the pulp therein.

4. A device for. cooking pulp comprising an elongated closed cooking'ehambe'r having passageways therethrough at the top and at the bottom thereof alternately and horizontalsteam jets in each compartment arranged to deliver steam in substantially parallel lines but in opposite directions, whereby said stelam serves to heat, agitate and propel the p 5 A cooker comprising an elongated, horizontal closed cooking chamber divided into a series of compartments, said cooking chamber being provided with intercommunieating passageways between said compartments alternately near the top and bottom thereof, and said compartments being provided with. inwardly-directed horizontal steam jets at diagonally opposite points.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses this 6th day of July, 1908, at Los Angeles, Los Angelcs county, California.

J. B. DODSON.

W itnesses H. G. BRADFORD, E. H. ROSE. 

